Fluorescence Whitener BBU

Quality index:

Item	Index
1）Appearance	Straw yellow even granule.
2） Fluorescence intensity, (equivalent to standard products), cent	100
3）Whiteness (Difference with that of standard product: whiteness of sample product% or WCTE standard sample whiteness% or WCTE)≥	-3
4）Moisture, % ≤	5.0
5） Fineness (residuum through screen with 250um aperture) %	10
6)Water-insoluble %	0.5

Performance and Characteristics: 　　
　　Fluorescence Whitener BBU belongs to stilbene four-sulphur acid derivative. Due to its granule, its water-solubility, sunshine resistance, and acid-alkali resistance is higher than that of VBL, and higher whiteness under the same dosage. Blue with purple light as dissolved in the water; be stable when stored and transported. It is especially suitable for manufacturing high-grade paper and cotton fabrics.
Application:
1. Application in paper making:
　　Whitening in ingredients, surface sizing and coating, etc. Add directly or dissolve in the water with temperature 30-50℃.
Dosage: to dry paper pulp: whitening in ingredients 0.1—0.3%; whitening in coating 0.1—0.5%; surface sizing 0.1—2%.
2. Application in printing and dyeing
Cotton yarn and cotton fabric after fluorescence Whitener treatment improve their appearance greatly, increase their whiteness and brightness. The bleaching cotton yarn and fabric must get rid of all chlorine. The water should have no metallic ion, such as copper and iron ions.
Temperature 40-90℃; PH: 8-9; dosage: 0.1-0.5%.
Package, storage, and transport:
　　20kg plastic bag, 25kg Carton pail, or packaging according to clients’ demand.